. ups ##ilo ##n and ##rom ##eda ##e b appears to be responsible for increased ch ##rom ##os ##pher ##ic activity on its parent star . observations suggest that there is a " hot spot " on the star around 169 ° away from the sub @ - @ planetary point . this may be the result of interactions between the magnetic fields of the planet and the star . the mechanism may be similar to that responsible for the activity of rs can ##um ve ##nat ##ico ##rum variable stars , or the interaction between jupiter and its moon io . = daniel radcliffe = daniel jacob radcliffe ( born 23 july 1989 ) is an english actor who rose to prominence as the title character in
. upsilon andromedae b appears to be responsible for increased chromospheric activity on its parent star. observations suggest that there is a " hot spot " on the star around 169 ° away from the sub @ - @ planetary point. this may be the result of interactions between the magnetic fields of the planet and the star. the mechanism may be similar to that responsible for the activity of rs canum venaticorum variable stars, or the interaction between jupiter and its moon io. = daniel radcliffe = daniel jacob radcliffe ( born 23 july 1989 ) is an english actor who rose to prominence as the title character in